What it means
The speaker uses illness as a metaphor for obsession — framing their unshakeable conviction that humans can fly as a progressive, incurable disease. It's self-deprecating humor masking dead seriousness. They're acknowledging that this belief has moved beyond rational debate into something visceral and permanent. The joke is that most people around them would have considered such a conviction genuinely delusional — yet the speaker wears it without apology.
Relevance to Wright Brothers (Orville & Wilbur)
Wilbur Wright wrote this to aeronautical engineer Octave Chanute around 1900 — three years before Kitty Hawk. As bicycle mechanics from Dayton with no formal engineering degrees, the brothers operated outside credentialed science, funding experiments themselves. Their obsession was methodical: studying bird wing-warping, building wind tunnels, testing dozens of glider configurations. The 'incurable' framing proved literally true — they never stopped, achieving powered flight on December 17, 1903.
The era
In 1900, heavier-than-air human flight was broadly dismissed as fantasy. The Smithsonian-funded Samuel Langley had already spent years on spectacular public failures. Lord Kelvin, one of history's greatest physicists, declared flying machines impossible. Newspapers mocked 'flying machine' enthusiasts as cranks. Against this backdrop, openly professing belief in flight carried real reputational risk — which is precisely why Wilbur framed his conviction as a medical affliction rather than a rational engineering position.
AI-generated insights based on extensive research and information for context. Factual errors? Email [email protected].